JPH06114209A - Water treatment agent and water method - Google Patents
Water treatment agent and water methodInfo
- Publication number
- JPH06114209A JPH06114209A JP4268322A JP26832292A JPH06114209A JP H06114209 A JPH06114209 A JP H06114209A JP 4268322 A JP4268322 A JP 4268322A JP 26832292 A JP26832292 A JP 26832292A JP H06114209 A JPH06114209 A JP H06114209A
- Authority
- JP
- Japan
- Prior art keywords
- treatment agent
- water
- inorg
- water treatment
- aid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水処理剤と水処理方法
に関し、特に、土木基礎工事の汚泥や土木建築廃液や河
川の汚泥など廃液の水中浮遊物を沈降させ、分離する水
処理剤と水処理方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment agent and a water treatment method, and more particularly to a water treatment agent for precipitating and separating suspended solids of waste liquid such as sludge in civil engineering foundation works, civil engineering construction waste liquid and river sludge. And the water treatment method.
【０００２】[0002]
【従来の技術】土木基礎工事の汚泥や土木建築廃液や河
川の汚泥など、廃液の水中浮遊物を沈降させ分離する水
処理剤は、すでに開発されているが、必ずしも十分なも
のでなく、特に、廃液中の浮遊物を沈降させ分離するま
での水処理剤は開発されているが、沈降、分離後の脱水
まで考慮した水処理剤は現在のところ開発されてない。2. Description of the Related Art Water treatment agents for sedimenting and separating suspended solids of waste liquid, such as sludge for civil engineering foundation works, civil engineering construction waste liquid, and river sludge, have been developed, but are not always sufficient. , A water treatment agent has been developed up to sedimentation and separation of the suspended matter in the waste liquid, but a water treatment agent considering the dehydration after sedimentation and separation has not yet been developed.
【０００３】現在は、廃液中の浮遊物を沈降させ、分離
させ、その後脱水してケーキとして、運搬が安易なよう
にして取り扱いが容易なようにされている。このように
して成した脱水が中性域を離れてアルカリ性域あるいは
酸性域であると、河川を汚染するので自由に放流するこ
とはできない。セメントは、ＰＨが12〜13あり、壁面を
保護するために使用されるベントナイトはＰＨが９〜10
あり、ＰＨを６〜８の中性域にまで下げないと河川に放
流することは許されない。At present, the suspended matter in the waste liquid is settled, separated, and then dehydrated to form a cake, which is easy to carry and easy to handle. If the dehydration thus performed leaves the neutral region and is in the alkaline region or the acidic region, it contaminates the river and cannot be discharged freely. Cement has a PH of 12 to 13, and bentonite used to protect the wall surface has a PH of 9 to 10.
Yes, it cannot be released into rivers unless the pH is lowered to a neutral range of 6-8.
【０００４】このことは、ケーキを作成しない水中の浮
遊物を沈降、分離させて、その後、河川に放流させる際
も全く同様である。ところが、現在までに開発されてい
る水処理剤は、処理された水のＰＨはまちまちで、さら
に、ＰＨを調整した後でしか河川に放流することはでき
なかった。水処理剤で処理した後に、再びＰＨ調整を土
木作業現場の作業者に行わせるのは煩わしいものであっ
た。This is exactly the same when settling and separating a floating substance in water which does not form a cake and then discharging it into a river. However, the water treatment agents that have been developed up to now have various pH values of the treated water, and can only be discharged into the river after adjusting the PH value. It has been troublesome for the worker at the civil engineering work site to perform the PH adjustment again after the treatment with the water treatment agent.
【０００５】[0005]
【発明が解決しようとする課題】土木基礎工事の汚泥や
土木建築廃液や河川の汚泥などの廃液のＰＨがアルカリ
性域あるいは酸性域であっても、無機水処理剤を投入す
ることでほぼ中性域にし、作業者にＰＨ調整させること
なく河川に放流でき、乾燥固化した汚泥の含水比が向上
するようにした水処理剤と水処理方法の開発が待たれて
いる。Problems to be Solved by the Invention Even if the pH of the sludge of civil engineering foundation works, the waste liquid of civil engineering construction, the sludge of rivers, etc. is in the alkaline region or the acidic region, it is almost neutral by adding the inorganic water treatment agent. The development of a water treatment agent and a water treatment method that can be discharged into a river without changing the pH of the area and the water content of the dried and solidified sludge can be improved is awaited.
【０００６】[0006]
【課題を解決するための手段】そこで、本発明は、上記
の事情に鑑み、土木基礎工事の汚泥や土木建築廃液や河
川の汚泥などの廃液に無機水処理剤を投入してＰＨを中
性域にすると共に凝集し、その後、有機凝集剤を投入し
て凝集、沈澱させる。無機水処理剤としては、 アルミニウム塩、鉄塩、希硫酸の一種よりなる酸性
無機凝集補助剤と、 カルシウム塩、ナトリウム塩、カリウム塩、珪酸塩
の一種よりなるアルカリ性無機凝集補助剤と、 粘土とフライアッシュの脱水補助剤・微粒子吸着剤
・沈降補助剤 とよりなる。Therefore, in view of the above situation, the present invention provides an inorganic water treatment agent to waste liquid such as sludge for civil engineering foundation work, civil engineering construction waste liquid, and river sludge to neutralize PH. Agglomerate and coagulate, and then add an organic coagulant to coagulate and precipitate. As the inorganic water treatment agent, an aluminum salt, an iron salt, an acidic inorganic coagulation aid consisting of one of dilute sulfuric acid, an alkaline inorganic coagulation aid consisting of one of calcium salt, a sodium salt, a potassium salt and a silicate, and a clay It consists of fly ash dehydration aid, particulate adsorbent, and sedimentation aid.
【０００７】ここで、酸性無機凝集補助剤のアルミニウ
ム塩としては、硫酸バンドがあり、鉄塩としては塩化第
二鉄がある。また、アルカリ性無機凝集補助剤のカルシ
ウム塩としては酸化カルシウム、水酸化カリウムがあ
り、ナトリウム塩としては炭酸ナトリウム、炭酸水素ナ
トリウム、水酸化ナトリウムがあり、カリウム塩として
は炭酸カリウム、炭酸水素カリウムがあり、珪酸塩とし
ては珪酸ソーダがある。The aluminum salt of the acidic inorganic coagulation aid has a sulfuric acid band, and the iron salt thereof is ferric chloride. The calcium salt of the alkaline inorganic coagulation aid includes calcium oxide and potassium hydroxide, the sodium salt includes sodium carbonate, sodium hydrogen carbonate and sodium hydroxide, and the potassium salt includes potassium carbonate and potassium hydrogen carbonate. As the silicate, there is sodium silicate.
【０００８】この酸性無機凝集補助剤とアルカリ性無機
凝集補助剤とを混合すれば中性液であり、酸性無機凝集
補助剤とアルカリ性無機凝集補助剤との投入により、廃
液はＰＨを中性域にすると共に凝集する。また、粘土と
フライアッシュ（石炭焼却灰）は、廃液を凝集させて沈
澱させ固化させて後、脱水を助ける脱水補助剤の働きを
し、また、廃液中の微粒子を吸着する微粒子吸着剤の働
きをし、さらに、沈降を助ける沈降補助剤の働きをす
る。A mixture of the acidic inorganic coagulation aid and the alkaline inorganic coagulation aid results in a neutral liquid. By adding the acidic inorganic coagulation aid and the alkaline inorganic coagulation aid, the pH of the waste liquid becomes neutral. As it does, it aggregates. In addition, clay and fly ash (coal incineration ash) act as a dehydration aid to aid dehydration after the waste liquid is aggregated, precipitated and solidified, and also as a fine particle adsorbent that adsorbs fine particles in the waste liquid. It also acts as a settling aid to aid settling.
【０００９】有機凝集剤としては、アニオン系処理剤、
カチオン系処理剤、ノニオン系処理剤がある。廃水の処
理方法としては、廃液のＰＨに応じた前述の水処理剤を
廃液に投入し、その後、アニオン系処理剤、カチオン系
処理剤、ノニオン系処理剤の一種を投入するようにした
水処理方法である。As the organic coagulant, an anionic treatment agent,
There are cationic treatment agents and nonionic treatment agents. As a method of treating wastewater, the above-mentioned water treatment agent corresponding to the pH of the wastewater is added to the wastewater, and then one kind of anionic treatment agent, cationic treatment agent and nonionic treatment agent is added. Is the way.
【００１０】[0010]
【実施例】土木基礎工事の汚泥や土木建築廃液や河川の
汚泥など廃液が中性の場合の無機水処理剤としては、[Example] As an inorganic water treatment agent when the waste liquid such as the sludge of the civil engineering foundation work, the civil engineering building waste liquid, and the river sludge is neutral,
【００１１】[0011]
【表１】 [Table 1]
【００１２】ここで、数字は配合の重量割合を示し、多
少逸脱しても本発明の目的を十分に達することができ
る。この無機水処理剤は有機系、無機系の両方の廃液の
処理に適する。Here, the numeral indicates the weight ratio of the composition, and the object of the present invention can be sufficiently achieved even if it deviates to some extent. This inorganic water treatment agent is suitable for treating both organic and inorganic waste liquids.
【００１３】[0013]
【表２】 [Table 2]
【００１４】この無機水処理剤は有機系の廃液の処理に
適する。ベントナイト泥水に本無機水処理剤を投入し、
その後、有機凝集剤を投入したら、次の結果を得た。This inorganic water treatment agent is suitable for treating organic waste liquid. Add this inorganic water treatment agent to bentonite muddy water,
Then, when an organic coagulant was added, the following results were obtained.
【００１５】[0015]
【表３】 [Table 3]
【００１６】これは、工業用水や農業用水に利用できる
基準値となっている。また、ポリマー系泥水に本水処理
剤を用いた結果は次のとおりであった。This is a standard value applicable to industrial water and agricultural water. The results of using this water treatment agent in polymer-based muddy water were as follows.
【００１７】[0017]
【表４】 [Table 4]
【００１８】これは工業用水の基準値にほぼ近い。This is close to the standard value of industrial water.
【００１９】[0019]
【表５】 [Table 5]
【００２０】この無機水処理剤は無機系廃液の処理に適
する。This inorganic water treatment agent is suitable for treating an inorganic waste liquid.
【００２１】[0021]
【表６】 [Table 6]
【００２２】この無機水処理剤は有機系廃液の処理に適
する。また、廃液がアルカリ性の場合は、This inorganic water treatment agent is suitable for treating organic waste liquid. If the waste liquid is alkaline,
【００２３】[0023]
【表７】 [Table 7]
【００２４】さらに、廃液が酸性の場合は、Further, when the waste liquid is acidic,
【００２５】[0025]
【表８】 [Table 8]
【００２６】実施例１〜６のいずれも、無機水処理剤の
廃液への配合比は、重量比で廃液の0.3 〜10％で、有機
凝集剤の廃液への配合比は、重量比で廃液の0.2 〜３％
である。これらの水処理剤の評価は、次のようにして成
される。沈澱物を機械により絞って脱水固化させ、乾燥
機により40分から１時間乾燥させた際、 乾燥により除去された水の重量／乾燥土量 で表し、これを含水比 (％) といい、この数値が大きい
ほど水分が多く除去されたことを意味する。In any of Examples 1 to 6, the mixing ratio of the inorganic water treatment agent to the waste liquid was 0.3 to 10% by weight of the waste liquid, and the mixing ratio of the organic flocculant to the waste liquid was the waste liquid by weight ratio. 0.2 to 3%
Is. Evaluation of these water treatment agents is performed as follows. When the precipitate is squeezed by a machine to be dehydrated and solidified and then dried in a dryer for 40 minutes to 1 hour, it is expressed as the weight of water removed by drying / the amount of dry soil, which is called the water content ratio (%). A larger value means that more water was removed.
【００２７】従来の水処理剤では40〜50％であったの
が、本発明の水処理剤によると、含水比が80％程度で格
段と良くなった。なお、中性廃液の処理には、廃液に適
した実施例１〜４の無機水処理剤を用いることにより含
水比を上げることができる。In the conventional water treatment agent, the water content was 40 to 50%, but according to the water treatment agent of the present invention, the water content ratio was about 80%, which was remarkably improved. In the treatment of the neutral waste liquid, the water content ratio can be increased by using the inorganic water treatment agents of Examples 1 to 4 suitable for the waste liquid.
【００２８】[0028]
【発明の効果】本発明は、上述のように、アルミニウム
塩、鉄塩、希硫酸の一種よりなる酸性無機凝集補助剤
と、カルシウム塩、ナトリウム塩、カリウム塩、珪酸塩
の一種よりなるアルカリ性無機凝集補助剤と、粘土とフ
ライアッシュの脱水補助剤・微粒子吸着剤・沈降補助剤
とよりなる無機水処理剤であり、また、廃液のＰＨに応
じた前記無機水処理剤を投入し、その後、アニオン系処
理剤、カチオン系処理剤の一種を投入するようにした水
処理方法であるので、土木基礎工事の汚泥や土木建築廃
液や河川の汚泥などの廃液のＰＨがアルカリ性域あるい
は酸性域であっても、無機処理剤を投入することでほぼ
中性域にし、作業者にＰＨ調整させることなく河川に放
流できる。さらに、乾燥固化した汚泥の含水比が向上す
る。As described above, the present invention provides an acidic inorganic coagulation aid consisting of one of aluminum salt, iron salt and dilute sulfuric acid, and an alkaline inorganic consisting of one of calcium salt, sodium salt, potassium salt and silicate. A coagulation aid, an inorganic water treatment agent consisting of clay and fly ash dehydration aid, fine particle adsorbent, sedimentation aid, also charged with the inorganic water treatment agent according to the pH of the waste liquid, then, Since this is a water treatment method that uses one of an anionic treatment agent and a cationic treatment agent, the pH of wastewater such as sludge in civil engineering foundation works and civil engineering construction wastewater and river sludge is in the alkaline or acidic range. However, by adding an inorganic treating agent, it can be made almost neutral and can be discharged into a river without pH adjustment by a worker. Further, the water content of the dried and solidified sludge is improved.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成４年１０月１３日[Submission date] October 13, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】この酸性無機凝集補助剤とアルカリ性無機
凝集補助剤とを混合すれば中性域であり、酸性無機凝集
補助剤とアルカリ性無機凝集補助剤との投入により、廃
液はＰＨを中性域にすると共に凝集する。また、粘土と
フライアッシュ（石炭焼却灰）は、廃液を凝集させて沈
澱させ固化させて後、脱水を助ける脱水補助剤の働きを
し、また、廃液中の微粒子を吸着する微粒子吸着剤の働
きをし、さらに、沈降を助ける沈降補助剤の働きをす
る。Mixing the acidic inorganic coagulation auxiliary agent and the alkaline inorganic coagulation auxiliary agent results in a neutral region, and by adding the acidic inorganic coagulant auxiliary agent and the alkaline inorganic coagulant auxiliary agent, the waste liquid brings the PH to the neutral region. As it does, it aggregates. Clay and fly ash (coal incineration ash) act as a dehydration aid to aid dehydration after coagulating, precipitating and solidifying waste liquid, and also as a fine particle adsorbent that adsorbs fine particles in the waste liquid. It also acts as a settling aid to aid settling.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０２Ｆ 11/14 Ｅ 7824−4Ｄ ＺＡＢ Ｂ 7824−4Ｄ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C02F 11/14 E 7824-4D ZAB B 7824-4D
Claims (2)
りなる酸性無機凝集補助剤と、カルシウム塩、ナトリウ
ム塩、カリウム塩、珪酸塩の一種よりなるアルカリ性無
機凝集補助剤と、粘土とフライアッシュの脱水補助剤・
微粒子吸着剤・沈降補助剤とよりなる無機水処理剤。1. An acidic inorganic flocculation aid comprising one of aluminum salt, iron salt and dilute sulfuric acid, an alkaline inorganic flocculation aid comprising one of calcium salt, sodium salt, potassium salt and silicate, clay and fly ash. Dehydration Aid
An inorganic water treatment agent consisting of a particulate adsorbent and a sedimentation aid.
理剤を廃液に投入し、その後、アニオン系処理剤、カチ
オン系処理剤、ノニオン系処理剤の一種を投入するよう
にした水処理方法。2. Water in which the inorganic water treatment agent according to claim 1 is added to the waste liquid according to the pH of the waste liquid, and then one of an anionic treatment agent, a cationic treatment agent and a nonionic treatment agent is added. Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4268322A JPH06114209A (en) | 1992-10-07 | 1992-10-07 | Water treatment agent and water method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4268322A JPH06114209A (en) | 1992-10-07 | 1992-10-07 | Water treatment agent and water method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06114209A true JPH06114209A (en) | 1994-04-26 |
Family
ID=17456932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4268322A Withdrawn JPH06114209A (en) | 1992-10-07 | 1992-10-07 | Water treatment agent and water method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06114209A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128499A (en) * | 1997-05-16 | 1999-02-02 | Hymo Corp | Method for dehydrating sludge |
| EP1115663A1 (en) * | 1998-09-18 | 2001-07-18 | Nalco Chemical Company | Method of dewatering difficult sludges |
| CN103043760A (en) * | 2012-12-21 | 2013-04-17 | 江门市慧信净水材料有限公司 | Polymeric aluminum filter pressing retarder and preparation method thereof |
| CN104016460A (en) * | 2014-06-26 | 2014-09-03 | 云南梓康廷环保科技有限公司 | Stable polyferrosilite production method |
| CN104056594A (en) * | 2013-12-25 | 2014-09-24 | 南通大学 | Clay mineral absorbing material applied to water treatment and preparation method thereof |
| CN105000645A (en) * | 2015-07-26 | 2015-10-28 | 李宏亮 | Environment-friendly water treatment agent, preparing method thereof and water treatment method |
| CN105110441A (en) * | 2015-09-30 | 2015-12-02 | 宁波保税区韬鸿化工科技有限公司 | Water treatment agent and preparing method |
| CN105271496A (en) * | 2015-10-26 | 2016-01-27 | 苏州书瑞环保科技有限公司 | Environment-friendly nano sedimentation agent for water treatment and preparation method of sedimentation agent |
| JP2019126761A (en) * | 2018-01-23 | 2019-08-01 | Ａｃ‐Ｌａｂｏ株式会社 | Treatment agent and manufacturing method of bentonite sludge or shield method sludge and treatment method of bentonite sludge or shield method sludge using the same |
-
1992
- 1992-10-07 JP JP4268322A patent/JPH06114209A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1128499A (en) * | 1997-05-16 | 1999-02-02 | Hymo Corp | Method for dehydrating sludge |
| EP1115663A1 (en) * | 1998-09-18 | 2001-07-18 | Nalco Chemical Company | Method of dewatering difficult sludges |
| EP1115663A4 (en) * | 1998-09-18 | 2003-08-13 | Nalco Chemical Co | Method of dewatering difficult sludges |
| CN103043760A (en) * | 2012-12-21 | 2013-04-17 | 江门市慧信净水材料有限公司 | Polymeric aluminum filter pressing retarder and preparation method thereof |
| CN104056594A (en) * | 2013-12-25 | 2014-09-24 | 南通大学 | Clay mineral absorbing material applied to water treatment and preparation method thereof |
| CN104016460A (en) * | 2014-06-26 | 2014-09-03 | 云南梓康廷环保科技有限公司 | Stable polyferrosilite production method |
| CN105000645A (en) * | 2015-07-26 | 2015-10-28 | 李宏亮 | Environment-friendly water treatment agent, preparing method thereof and water treatment method |
| CN105110441A (en) * | 2015-09-30 | 2015-12-02 | 宁波保税区韬鸿化工科技有限公司 | Water treatment agent and preparing method |
| CN105271496A (en) * | 2015-10-26 | 2016-01-27 | 苏州书瑞环保科技有限公司 | Environment-friendly nano sedimentation agent for water treatment and preparation method of sedimentation agent |
| JP2019126761A (en) * | 2018-01-23 | 2019-08-01 | Ａｃ‐Ｌａｂｏ株式会社 | Treatment agent and manufacturing method of bentonite sludge or shield method sludge and treatment method of bentonite sludge or shield method sludge using the same |
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